From the top of a tower, 80 m high from the ground, a stone is thrown in the horizontal direction with avelocity of 8 ms–1. The stone reaches the ground after a time ‘t’ and falls at a distance of ‘d’ from the footof the tower.Assuming g = 10ms–2, the time t and distance d are given respectively byA. 6 s, 64 m B. 6 s, 48 m C. 4 s, 32 m D. 4s, 16 m

in a physics laboratory a block x is balanced by a block Y of mass 200 kg,each are suspended from a balance of equal lever arms .the scale pan on X is at a height.H1=2 cm ,where as scale pan on Y is at height 1 cm above the floor.the error in weighing is (in gram)

consider the figure of a single riveted lap joint as follows

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cyclic heat engine operates between. temperature of 30 C. What is the least rate of heat rejection per kW net output of an engine. source temperature of 800 C and sink

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